Who were the early Chinese? (Hint: they were European Whites, not East Asian "Han"

Blue eyed ancestors can be attributed to either Mesolithic Hunter Gatherers pre-LGM (Haplogroups I1 and I2), or to Yamnaya/Maykop (HaplogroupsR1a + R1b) Proto-Indo-Europeans (Hitler's original pure "Aryans"). Red hair was a Neanderthal trait. Both Neolithic farmers had some markers for light skin but mostly due to I.E. Bronze Age invaders. Some Scandinavian HGs mutated into Nordic phenotypes.

You should Google up "Tocharians", "Yuezhi" and "Tarim Basin Mummies" to realize that the first "Chinese" were actually White Europeans who spoke an independent daughter branch of Proto-Indo-European language.